Linotype-machine.



No. 784,275. PATENTED MAR. 7, 1905.

1 1). PETRI-PALMEDO.

2 SHEETS-SHEET 1.

yj'amcoow I [WM/["06 g Q 9513a .aHo mmu PATENTED MAR. 7, 1905.

D. PETRI-PALMEDO.

LINOTYPE MACHINE.

APPLICATION FILED SEPT. 1. 1904.

2SHEETS-SHEET 2.

Wi/lmaoow 7 UNITED STATES Patented March '7, 1905.

PATENT OFFICE.

DAVID PETRI-PALMEDO, OF HOBOKEN, NEW JERSEY, ASSIGNOR TO THE MERGENTHALER LINOTYPE COMPANY, A CORPORATION OF NEV YORK.

LlNOTYPE-MACHINE.

SPECIFICATION forming part of Letters Patent No. 784,275, dated March 7, 1905.

Application filed September 1, 1904. Serial No. 222,984.

To all loll/0771, it may concern:

Be it known that 1, DAVID PETRI-PALMEDO, of Hoboken, county of Hudson, and State of New Jersey, have invented a new and useful Improvement in Linotype-Machines, of which the following is a specification.

My invention has reference to machines in which linotypes or line-printing slugs are cast in a slotted mold against a series of matrices assembled temporarily against its front. It has reference particularly to means for removing from the front edges of the slug the thin burs or fins which are sometimes formed by the overflow of metal between the face of the mold and the matrices. It is designed more particularly as an improvement on the mechanism represented in Letters Patent of the United States to John R. Rogers, No. 773,341, dated October 25, 1904.

My device consists of one 01' more trimmingknives arranged to act against the front face of the mold and along the edge of the slug occupying its original position therein, the knife or knives being mounted to slide in an arm which receives a rotary motion in order that the knives may stand at all times at right angles to the length of the mold during the travel of the latter in its circular path.

In the Rogers mechanism, above referred to, the result is attained by imparting to the knife-supporting arm an oscillatory or vibratory motion, which necessitated the use of a controlling-cam and connections expensive to manufacture and diflicult to maintain in proper operative condition.

My invention admits of the parts being more cheaply constructed and of their being more readily kept in order.

Referring to the accompanying drawings, Figures 1,2, and 3 represent a face-section of a linotype-mold, its carrying-wheel, and my improved trimming devices, the several views showing the parts at different stages of their operation. Fig. 4 is a longitudinal section through the trimming-knife and mold on the line 4 4 of the preceding figures.

Referring to the drawings, A represents a vertical intermittingly-rotated wheel, B the which the two knives are mounted in such manner that they may move freely in an endwise direction. These knives are connected by a spiral spring F, which tends to draw them toward each other and against opposite sides of the slug, and are mounted to slide freely on the slotted end of the arm E. This arm is fixed at its outer end to a rotating shaft or spindle G, mounted in the main frame and provided with a gear-wheel H, receiving motion through a pinion 1, attached to a gear J, which in turn engages the gearteeth in the outer edge of the mold-carrying wheel or disk A.

7 As the forward end of the revolving wheel approaches the knives the lips or shoulders d on the latter seat themselves against the longitudinal lips or shoulders I) L, Fig. 4, on thecap and body of the mold, respectively, whereby the inner ends of the knives are held apart a distance equal to the thickness of the mold-slot and the slug or linotype therein, so that, as shown in Fig. 4, the knives will serve to cut away any fins or burs projecting laterally from the front edge of the slug.

As the mold rotates in one direction the knife-supporting arm rotates in the reverse direction, their speeds being the same, so that the arms stand always at right angles to the length of the mold, thus maintaining the knives in proper operative relation to the mold and the slug. In this manner the knives are caused to trim the slug progressively from one end to the other, the successive positions being shown in Figs. 3, l, and 2, respectively.

As the end of the mold advances toward the knives the lips (Z on the ends of the knives are caused to ride on the longitudinal lips or shoulders of the mold, against which they are held by the connecting-spring F.

While I prefer to employ the means indicated in the drawings for effecting the rotation of the knife-carrying arm E and tomount the knives on the arm in the manner shown, it is to be understood that the details may be modified at will provided only the knives are arranged to slide lengthwise of the arm and the latter given a rotation at a proper speed and in a proper direction-that is, the same speed and direction as that in which the moldcarrying disk is rotated.

It will be observed that the knives on leaving the rear end of the mold stand in precisely ,the same position on the arm that they do the carrying-arm E to a pin M on the outer knife D, this pin serving by contact with the outer end of the arm E as a stop to limitthe inward sliding movement of the knife.

The spring K may be replaced by a campiece L, as in the Rogers device, fastened to the mold-wheel A, serving the same purpose of bringing the knife into proper relation to the mold previous to their entering upon itin case they should have been accidentally displaced while out of engagement with the mold. This cam-piece I do not claim as any part of my invention.

Having described my invention, what I claim is v 1. In a linotype-machine, the combination of a'mold arranged to rotate in one plane, and a cooperating knife arranged to rotate in the opposite direction in a parallel plane, whereby the knife is caused to traverse the mold repeatedly in the same direction to trim the front of the contained slug.

2. In a linotype-machine, the combination of a mold, a knife cooperating with its face to trim the front of the contained slug, and means for rotating the mold and the knife in parallel planes and in reverse directions.

3. The mold mounted in a rotary wheel, in combination with the arm geared to the wheel to rotate in the reverse direction, the knives mounted to slide on the arm, a spring connection urging the knives toward each other, and a spring urging the knives toward the axis of the carrying-arm.

4. The mold and its carrying-wheel, in combination with the rotary arm, E, intermediate gear, the two sliding knives adapted to engage and be guided by the mold, and the spring connecting the knives.

In testimony whereof I hereunto set my hand, this 25th day of August, 1904, in the presence of two attesting witnesses.

D. PETRI-PALMEDO.

Witnesses:

MARGARET DOYLE, WALTER MoBLARD. 

